SST29SF020-55-4C-NHE 查看數據表（PDF） - Silicon Storage Technology
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SST29SF020-55-4C-NHE Datasheet PDF : 25 Pages
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2 Mbit / 4 Mbit Small-Sector Flash
SST29SF020 / SST29SF040
SST29VF020 / SST29VF040
Data Sheet
TABLE 4: Software Command Sequence
Command
Sequence
Byte-Program
Sector-Erase
Chip-Erase
Software ID Entry4,5
Software ID Exit6
Software ID Exit6
1st Bus
Write Cycle
Addr1 Data
555H AAH
555H AAH
555H AAH
555H AAH
XXH F0H
555H AAH
2nd Bus
Write Cycle
Addr1 Data
2AAH 55H
2AAH 55H
2AAH 55H
2AAH 55H
2AAH 55H
3rd Bus
Write Cycle
Addr1 Data
555H A0H
555H 80H
555H 80H
555H 90H
555H F0H
4th Bus
Write Cycle
Addr1 Data
BA2 Data
555H AAH
555H AAH
5th Bus
Write Cycle
Addr1 Data
2AAH 55H
2AAH 55H
1. Address format A14-A0 (Hex),
Addresses A15-AMS can be VIL or VIH, but no other value, for the Command sequence for SST29SF/VF020/040.
AMS = Most significant address
AMS = A17 for SST29SF/VF020 and A18 for SST29SF/VF040.
2. BA = Program Byte address
3. SAX for Sector-Erase; uses AMS-A7 address lines for SST29SF/VF020/040
4. The device does not remain in Software Product ID mode if powered down.
5. With AMS-A1 = 0; SST Manufacturer’s ID = BFH, is read with A0 = 0,
SST29SF020 Device ID = 24H, is read with A0 = 1
SST29VF020 Device ID = 25H, is read with A0 = 1
SST29SF040 Device ID = 13H, is read with A0 = 1
SST29VF040 Device ID = 14H, is read with A0 = 1
6. Both Software ID Exit operations are equivalent
6th Bus
Write Cycle
Addr1 Data
SAX3 20H
555H 10H
T4.7 1160
©2005 Silicon Storage Technology, Inc.
7
S71160-13-000
10/06
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